Had a friend came over from Ireland. They had reruns of the show 'Dallas' over there. She thought everyone lived like a millionaire in America. (like in this song). She was in for a shock when she got a job, a sponsor and green card to get here! She stayed, became a citizen and worked hard. she got a great job. She's very well off now! Great song!
Kippers are fish. They are small herrings that are smoked. Here in Canada I buy them in cans (similar to sardines). In the UK I think they can buy them without the canning. They taste great on toast with a bit of mustard. Jumbo in the song refers to a jumbo jet.
Lots to explore with Supertramp. Singles plus deeper album cuts. They have two alternating lead singers. This one is Roger Hodgson. The other is Richard Davies. Contrasting writing and singing styles is what makes the albums interesting.